Travel Oath Pizza: Fast-growing chain uses Certified Humane toppings December 5, 2018December 5, 2018Larry Olmsted, Special to USA TODAYComments Off on Oath Pizza: Fast-growing chain uses Certified Humane toppings Oath delivers tasty pizza in an amazing array of variations for a reasonable price, does it quickly and with a smile, and in a way that is guilt-free.